VulnerabilityPublished 4 Mar 2026Updated 5 Mar 2026

CVE-2025-59787: 2N Telekomunikace a.s 2N Access Commander · – Improper Check or Handling of Exceptional Conditions

Affects 2N Telekomunikace a.s 2N Access CommanderSource CVE Database V5

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Not known to be exploited · CVSS 5.3 Medium : upgrade to 3.5 when convenient.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 4.0 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 3.5

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: Low
Vulnerable system integrity: None
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade 2N Telekomunikace a.s 2N Access Commander to 3.5.

Affected software

Product	Affected	Fixed in
2N Telekomunikace a.s.2N Access Commander	Affected <3.5	Fixed in 3.5

AI-suggested

Organizations should prioritize updating 2N Access Commander to the latest version once a patch addressing CVE-2025-59787 is released by 2N Telekomunikace a.s. In the absence of an official patch, implement network-level protections such as Web Application Firewalls (WAFs) configured to detect and block malformed or suspicious HTTP requests targeting the Access Commander application. Employ strict input validation and sanitization rules at the perimeter to prevent malformed requests from reaching the application. Limit network exposure of the Access Commander interface by restricting access to trusted internal networks or VPNs, reducing the attack surface. Monitor application logs and network traffic for unusual HTTP 500 error spikes that may indicate exploitation attempts. Conduct regular security assessments and penetration testing focused on input validation and error handling to identify and remediate similar issues proactively. Engage with the vendor for timely updates and security advisories. Additionally, implement redundancy and failover mechanisms for access control systems to maintain availability in case of service disruption.

Description

2N Access Commander application version 3.4.2 and prior returns HTTP 500 Internal Server Error responses when receiving malformed or manipulated requests, indicating improper handling of invalid input and potential security or availability impacts.

Impact

The primary impact of CVE-2025-59787 is on the availability of the 2N Access Commander application. Attackers can exploit this vulnerability to trigger HTTP 500 Internal Server Errors by sending malformed or manipulated requests, potentially causing denial-of-service conditions. This can disrupt access control management operations, which are critical in physical security environments, potentially leading to operational downtime or degraded security posture. Although the vulnerability does not directly compromise confidentiality or integrity, the resulting service interruptions could indirectly affect organizational security by preventing legitimate access control management or monitoring. Organizations relying on 2N Access Commander for managing physical access in sensitive or high-security environments may face increased risk of operational disruption. The lack of authentication requirement and remote exploitability increase the threat surface, especially in environments where the application is exposed to untrusted networks. The absence of known exploits in the wild currently limits immediate risk, but the vulnerability remains a concern for organizations until patched or mitigated.

CWE-703Improper Check or Handling of Exceptional Conditions (opens in a new tab)
Pillar weaknessOWASP Top 10 A10:2025: Mishandling of Exceptional Conditions (opens in a new tab)
The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
OWASP Cheat Sheets
Logging (opens in a new tab)
Error Handling (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

2n.com/en-GB/download/cve_2025_59787_acom_3_5_v1pdf (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 11 Mar 2026, 19:43 UTC

WeaknessesCWE-703

Technical details

References

Community reviews

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